An evaluation of rockfall and its control
By: by Arthur M. Ritchie. Research Project no. HPS 1-(22) conducted by the Washington State Highway Commission, Department of Highways in cooperation with the Department of Commerce, Bureau of Public Roads.
Contributors: Ritchie, Arthur M.; United States. Bureau of Public Roads.
Published: 1963
Place of publication: [Olympia?]
Language: eng
Number of pages: 23
Subjects: Landslides.; Rock slopes.; Roads -- Design and construction.
Other titles: Rockfall and its control.